Mug



FIG. 1 is a front side perspective view of the mug;

FIG. 2 is a top view of the design embodiment shown in FIG. 1;

FIG. 3 is a bottom view of the design embodiment shown in FIG. 1; and,

FIG. 4 is a side view of the design embodiment shown in FIG. 1.

The broken lines in the drawings are included for the purpose of illustration and form no part of the claimed design. 

We claim the ornamental design for a mug, as shown and described. 